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From Lawan Subba <lawansubba.mailingl...@gmail.com>
Subject Re: ORC Stripe Skip Using Stripe Level Index
Date Tue, 24 Jan 2017 22:45:21 GMT
Hi Gopal,

Thank you for the quick reply.

I am new to open source projects,  can you also tell me why this
functionality is missing from the github repository for Apache ORC.

Regards,
Lawan Subba

On Tue, Jan 24, 2017 at 8:26 PM, Gopal Vijayaraghavan <gopalv@apache.org>
wrote:

>
> >    I can see that row indices are being used to select only rowgroups
> that
> >    satisfy a search predicate in
> …
> >   But, I cannot find where and if the stripe level indices are being
> used?
>
> https://github.com/apache/hive/blob/master/ql/src/java/
> org/apache/hadoop/hive/ql/io/orc/OrcInputFormat.java#L2031
>
> Read through isStripeSatisfyPredicate and pickStripesInternal.
>
> Cheers,
> Gopal
>
>
>
>

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